Gaul, W., & Schader, M. (1986). Classification as a tool of research: Proceedings of the 9th Annual Meeting of the Classification Society, University of Karlsruke, F.R.G., 26-28, 1985. North-Holland.
Chicago Style (17. basım) AtıfGaul, W., ve M. Schader. Classification as a Tool of Research: Proceedings of the 9th Annual Meeting of the Classification Society, University of Karlsruke, F.R.G., 26-28, 1985. Amsterdam: North-Holland, 1986.
MLA (9th ed.) AtıfGaul, W., ve M. Schader. Classification as a Tool of Research: Proceedings of the 9th Annual Meeting of the Classification Society, University of Karlsruke, F.R.G., 26-28, 1985. North-Holland, 1986.
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